Display device and electronic device including the same

ABSTRACT

A display device and an electronic device including the same are provided. The display device includes: a display panel including a plurality of first pixels in a first display area and a plurality of second pixels in a second display area and form pixel groups spaced apart from each other with a transmission area therebetween; and a touch sensing layer including a plurality of electrodes on the display panel, wherein each of the plurality of electrodes includes first conductive lines having a mesh pattern, the first conductive lines including a plurality of first openings that respectively correspond to at least one of the first pixels, and at least one of the plurality of electrodes includes second conductive lines having a mesh pattern, the second conductive lines including a plurality of second openings that respectively correspond to at least one of the second pixels.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.17/145,687, filed Jan. 11, 2021, which claims priority to and thebenefit of Korean Patent Application No. 10-2020-0019080, filed Feb. 17,2020, the entire content of both of which is incorporated herein byreference.

BACKGROUND 1. Field

Aspects of one or more example embodiments relate to a display deviceand an electronic device including the same.

2. Description of Related Art

Recently, the various uses of display devices has become morediversified. In addition, as display devices have become thinner andlighter, their ranges of use has gradually expanded.

As display devices are used in various ways and for variousapplications, they have been designed to have various shapes andstructures. Also, functions that may be combined or associated with thedisplay devices are increasing.

The above information disclosed in this Background section is only forenhancement of understanding of the background and therefore theinformation discussed in this Background section does not necessarilyconstitute prior art.

SUMMARY

Aspects of one or more example embodiments relate to a display deviceand an electronic device including the same, and for example, to adisplay device having an extended display area to display an image evenin an area where an electronic component is arranged, and an electronicdevice including the same.

As ways of increasing functions that may be combined or associated withdisplay devices, one or more example embodiments may include a displaydevice including a relatively extended display area for displayingimages even in an area where an electronic component is arranged, and anelectronic device including the same. For example, one or more exampleembodiments may include a display device capable of obtaininginformation according to an external input even in a region where anelectronic component is arranged, and an electronic device including thesame. However, the above technical characteristics are examples, and thescope of example embodiments according to the present disclosure are notlimited thereto.

Additional aspects will be set forth in part in the description whichfollows and, in part, will be more apparent from the description, or maybe learned by practice of the presented example embodiments of thedisclosure.

According to one or more example embodiments, a display device includes:a display panel including a plurality of first pixels that are arrangedin a first display area and a plurality of second pixels that arearranged in a second display area and form pixel groups spaced apartfrom each other with a transmission area therebetween; and a touchsensing layer including a plurality of electrodes arranged on thedisplay panel, wherein each of the plurality of electrodes includesfirst conductive lines having a mesh pattern, the first conductive linesincluding a plurality of first openings that respectively correspond toat least one of the first pixels, and at least one of the plurality ofelectrodes includes second conductive lines having a mesh pattern, thesecond conductive lines including a plurality of second openings thatrespectively correspond to at least one of the second pixels, whereinone of the second conductive lines extends between adjacent pixel groupsin a first direction or a second direction intersecting with the firstdirection.

According to some example embodiments, the first conductive lines may belocated between two adjacent first pixels among the first pixels, andthe second conductive lines may be located between two adjacent secondpixels among the second pixels.

According to some example embodiments, the plurality of electrodes mayinclude: first electrodes arranged in the first direction; and secondelectrodes arranged in the second direction intersecting with the firstdirection.

According to some example embodiments, the display panel may furtherinclude at least one first wire extending in the first direction and atleast one second wire extending in the second direction intersectingwith the first direction, and the one of the second conductive lines maybe arranged to at least partially overlap the at least one first wire orthe at least one second wire.

According to some example embodiments, the first wire may include a dataline, and the second wire may include a scan line.

According to some example embodiments, the pixel groups formed by theplurality of second pixels may include a first group of second pixelsand a second group of second pixels that are spaced apart from eachother with the transmission area therebetween, the second conductivelines may include: a first group of second conductive lines locatedbetween at least two second pixels among the first group of secondpixels; and a second group of second conductive lines located between atleast two second pixels among the second group of second pixels, and theone of the second conductive lines may extend between the first group ofsecond conductive lines and the second group of second conductive linesto connect the first group of second conductive lines to the secondgroup of second conductive lines.

According to some example embodiments, the pixel groups formed by theplurality of second pixels may further include a third group of secondpixels and a fourth group of second pixels that are arranged in a firstdirection, the second conductive lines may include: a third group ofsecond conductive lines located between at least two second pixels amongthe third group of second pixels; and a fourth group of secondconductive lines located between at least two second pixels among thefourth group of second pixels, and the first group of second pixels andthe second group of second pixels may be arranged in a second directiondifferent from the first direction.

According to some example embodiments, the touch sensing layer mayfurther include a connection conductive line configured to electricallyconnect the third group of second conductive lines to the fourth groupof second conductive lines.

According to some example embodiments, the display device may furtherinclude an insulating layer between the third group of second conductivelines and the connection conductive line and between the fourth group ofsecond conductive lines and the connection conductive line, wherein theconnection conductive line may be respectively connected to the thirdgroup of second conductive lines and the fourth group of secondconductive lines through contact holes of the insulating layer.

According to some example embodiments, the display panel may furtherinclude at least one first wire extending in the first direction and atleast one second wire extending in the second direction, and theconnection conductive line is arranged to at least partially overlap theat least one first wire.

According to some example embodiments, the display panel may furtherinclude a first wiring area corresponding to an area where the at leastone first wire is located, and the connection conductive line may bearranged to overlap the first wiring area.

According to some example embodiments, the display panel may furtherinclude a second wiring area corresponding to an area where the at leastone second wire is located, and the one of the second conductive linesmay be arranged to overlap the second wiring area.

According to some example embodiments, a width of the connectionconductive line may be less than a width of the first wiring area.

According to some example embodiments, the first group of second pixelsor the second group of second pixels may be arranged between the thirdgroup of second pixels and the fourth group of second pixels, and theconnection conductive line may overlap the first group of second pixelsor the second group of second pixels.

According to some example embodiments, a width of the second conductiveline may be greater than a width of the first conductive line.

According to some example embodiments, the number of the second pixelsper the same area may be less than the number of the first pixels perthe same area.

According to some example embodiments, the plurality of electrodes mayeach include a metal layer.

According to some example embodiments, the first conductive line and thesecond conductive line may include the same material.

According to some example embodiments, the connection conductive linemay include the same material as the second conductive line.

According to one or more example embodiments, an electronic deviceincludes: a display device including a first display area and a seconddisplay area that have different resolutions; and an electroniccomponent overlapping a transmission area included in the second displayarea, wherein the display device includes: a display panel including aplurality pixels, the plurality of pixels including a plurality of firstpixels that define the first display area, and a plurality of secondpixels that form pixel groups spaced apart from each other with thetransmission area therebetween, and define the second display area; anda touch sensing layer including a plurality of electrodes arranged onthe display panel, wherein the plurality of electrodes include firstconductive lines having a mesh pattern, the first conductive linesincluding a plurality of first openings that respectively correspond toat least one of the first pixels, at least one of the plurality ofelectrodes includes second conductive lines having a mesh pattern, thesecond conductive lines including a plurality of second openings thatrespectively correspond to at least one of the second pixels, and one ofthe second conductive lines extends between adjacent pixel groups in afirst direction or a second direction intersecting with the firstdirection.

According to some example embodiments, the display panel may furtherinclude: a pixel electrode; an intermediate layer arranged on the pixelelectrode; an opposite electrode arranged on the intermediate layer; anda pixel-defining layer covering edges of the pixel electrode, the firstconductive lines may be arranged to overlap a pixel-defining layerlocated in the first display area, and the second conductive lines maybe arranged to overlap a pixel-defining layer located in the seconddisplay area.

According to some example embodiments, the plurality of electrodes mayinclude: first electrodes arranged in the first direction; and secondelectrodes arranged in the second direction intersecting with the firstdirection.

According to some example embodiments, the display panel may furtherinclude at least one first wire extending in the first direction and atleast one second wire extending in the second direction intersectingwith the first direction, and the one of the second conductive lines isarranged to at least partially overlap the at least one first wire orthe at least one second wire.

According to some example embodiments, the pixel groups formed by theplurality of second pixels may include a first group of second pixelsand a second group of second pixels that are spaced apart from eachother with the transmission area therebetween, the second conductivelines may include: a first group of second conductive lines locatedbetween at least two second pixels among the first group of secondpixels; and a second group of second conductive lines located between atleast two second pixels among the second group of second pixels, and theone of the second conductive lines may extend between the first group ofsecond conductive lines and the second group of second conductive linesto connect the first group of second conductive lines to the secondgroup of second conductive lines.

According to some example embodiments, the pixel groups formed by theplurality of second pixels may further include a third group of secondpixels and a fourth group of second pixels that are arranged in a firstdirection, the second conductive lines may include: a third group ofsecond conductive lines located between at least two second pixels amongthe third group of second pixels; and a fourth group of secondconductive lines located between at least two second pixels among thefourth group of second pixels, and the first group of second pixels andthe second group of second pixels may be arranged in a second directiondifferent from the first direction.

According to some example embodiments, the touch sensing layer mayfurther include a connection conductive line configured to electricallyconnect the third group of second conductive lines to the fourth groupof second conductive lines.

According to some example embodiments, the touch sensing layer mayfurther include an insulating layer between the third group of secondconductive lines and the connection conductive line and between thefourth group of second conductive lines and the connection conductiveline, and the connection conductive line may be respectively connectedto the third group of second conductive lines and the fourth group ofsecond conductive lines through contact holes of the insulating layer.

According to some example embodiments, a width of the second conductiveline may be greater than a width of the first conductive line.

According to some example embodiments, the electronic component mayinclude an imaging device or a sensor.

These and/or other aspects will become more apparent and more readilyappreciated from the following description of the example embodiments,the accompanying drawings, and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and characteristics of certainexample embodiments of the disclosure will be more apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a schematic perspective view of a display device according tosome example embodiments;

FIG. 2 is a schematic cross-sectional view of a portion of a displaydevice according to some example embodiments;

FIG. 3 is an equivalent circuit diagram of a pixel circuit included in adisplay device according to some example embodiments;

FIG. 4 is a schematic plan view of a touch sensing layer included in adisplay device according to some example embodiments;

FIG. 5 is a schematic cross-sectional view of a stacked structure of atouch sensing layer included in a display device according to someexample embodiments;

FIG. 6 is a schematic plan view of a first conductive layer of a touchsensing layer included in a display device according to some exampleembodiments;

FIG. 7 is a schematic plan view of a second conductive layer of a touchsensing layer included in a display device according to some exampleembodiments;

FIG. 8 is a schematic enlarged plan view of a display device accordingto some example embodiments;

FIG. 9 is a schematic enlarged plan view of a display device accordingto some example embodiments, illustrating arrangements of a pixel, atransmission area, a wiring area, and a touch sensing layer included inthe display device;

FIG. 10 is a schematic enlarged plan view of a display device accordingto some example embodiments, illustrating arrangements of a pixel, atransmission area, a wiring area, and a touch sensing layer included ina display panel;

FIG. 11 is a schematic cross-sectional view of a portion of a displaydevice according to some example embodiments, illustrating arrangementsof a first conductive layer and a second conductive layer of a touchsensing layer;

FIG. 12 is a schematic cross-sectional view of a portion of a displaydevice according to some example embodiments, illustrating arrangementsof a first conductive layer, a second conductive layer, a first wire,and a second wire of a touch sensing layer;

FIG. 13 is a schematic plan view of a touch sensing layer included in adisplay device according to some example embodiments; and

FIG. 14 is a schematic cross-sectional view of a touch sensing layerincluded in a display device according to some example embodiments.

DETAILED DESCRIPTION

Reference will now be made in more detail to aspects of some exampleembodiments, which are illustrated in the accompanying drawings, whereinlike reference numerals refer to like elements throughout. In thisregard, the present example embodiments may have different forms andshould not be construed as being limited to the descriptions set forthherein. Accordingly, aspects of some example embodiments are describedbelow, by referring to the figures, to explain aspects of the presentdescription. As used herein, the term “and/or” includes any and allcombinations of one or more of the associated listed items. Throughoutthe disclosure, the expression “at least one of a, b or c” indicatesonly a, only b, only c, both a and b, both a and c, both b and c, all ofa, b, and c, or variations thereof.

Hereinafter, the present example embodiments are described in moredetail with reference to the accompanying drawings. Like referencenumerals in the drawings denote like elements, and repeated descriptionthereof is omitted.

It will be understood that although the terms “first,” “second,” etc.may be used herein to describe various elements, these elements shouldnot be limited by these terms. These terms are only used to distinguishone component from another.

As used herein, the singular forms “a,” “an,” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise.

It will be further understood that the terms “comprises” and/or“comprising” used herein specify the presence of stated features orelements, but do not preclude the presence or addition of one or moreother features or elements.

It will be understood that when a layer, region, or element is referredto as being “formed on,” another layer, region, or element, it can bedirectly or indirectly formed on the other layer, region, or element.That is, for example, intervening layers, regions, or elements may bepresent.

Sizes of elements in the drawings may be exaggerated or reduced forconvenience of explanation. In other words, because sizes andthicknesses of elements in the drawings are arbitrarily illustrated forconvenience of explanation, the following embodiments are not limitedthereto.

When a certain embodiment may be implemented differently, a specificprocess order may be performed differently from the described order. Forexample, two consecutively described processes may be performedsubstantially at the same time or performed in an order opposite to thedescribed order.

In the present specification, “A and/or B” means A or B, or A and B. Inaddition, “at least one of A and B” means A or B, or A and B.

It will be understood that when a layer, region, or element is referredto as being “connected” to another layer, region, or element, it may be“directly connected” to the other layer, region, or element and/or maybe “indirectly connected” to the other layer, region, or element withother layer, region, or element interposed therebetween. For example, itwill be understood that when a layer, region, or element is referred toas being “electrically connected” to another layer, region, or element,it may be “directly electrically connected” to the other layer, region,or element, or may be “indirectly electrically connected” to otherlayer, region, or element with other layer, region, or elementinterposed therebetween.

In the following examples, the x-axis, the y-axis and the z-axis are notlimited to three axes of the rectangular coordinate system, and may beinterpreted in a broader sense. For example, the x-axis, the y-axis, andthe z-axis may be perpendicular to one another, or may representdifferent directions that are not perpendicular to one another.

FIG. 1 is a schematic perspective view of a display device 1 accordingto some example embodiments.

Referring to FIG. 1 , the display device 1 includes a first display areaDA1, a second display area DA2, and a surrounding area SA, the firstdisplay area DA1 and the second display area DA2 each emitting light,and the surrounding area SA not emitting light. The second display areaDA2 may be arranged adjacent to the first display area DA1, and thesurrounding area SA may arranged outside the first display area DA1.

According to some example embodiments, it is shown in FIG. 1 that onesecond display area DA2 is arranged inside the first display area DA1.According to some example embodiments, however, the number of seconddisplay areas DA2 may be two or more, and shapes and sizes of the seconddisplay areas DA2 provided in plural may be different from each other.The surrounding area SA may be a non-display area where pixels are notarranged. The first display area DA1 may be entirely or partiallysurrounded by the surrounding area SA.

Though it is shown in FIG. 1 that the second display area DA2 isapproximately quadrangular, the embodiments are not limited thereto. Ina plan view (when viewed in a direction perpendicular to one surface ofa substrate), a shape of each of the second display areas DA2 may bevariously modified such as a circle, an ellipse, a polygon including aquadrangle, a star, and a diamond.

In addition, though it is shown in FIG. 1 that the second display areaDA2 is arranged on one side (a top right side) of the first display areaDA1, which has a quadrangular shape, the embodiments are not limitedthereto. According to some example embodiments, the second display areaDA2 may be arranged on one side (e.g. a top left side or a top center)of the first display area DA1, which has a quadrangular shape.

Furthermore, though it is shown in FIG. 1 that the second display areaDA2 is entirely surrounded by the first display area DA1, theembodiments are not limited thereto. According to some exampleembodiments, the second display area DA2 may be partially surrounded bythe first display area DA1, and a side of the second display area DA2that is not surrounded by the first display area DA1 may be surroundedby the surrounding area SA.

Hereinafter, though the display device 1 according to some exampleembodiments is described as including an organic light-emitting displaypanel as an example, the display device 1 according to some exampleembodiments is not limited thereto. For example, according to someexample embodiments, the display device 1 may include various othertypes of display devices or light emitting components, such as inorganiclight-emitting display panels and quantum dot light-emitting displaypanels. For example, an emission layer of a display element provided toa display panel 10 may include an organic material, an inorganicmaterial, quantum dots, an organic material and quantum dots, or aninorganic material and quantum dots.

The display device 1 may provide a certain image by using light emittedfrom a plurality of pixels PX arranged in the first display area DA1 andthe second display area DA2. A first pixel array in which first pixelsPX1 are two-dimensionally arranged may be positioned in the firstdisplay area DA1, and a second pixel array in which second pixels PX2are two-dimensionally arranged may be positioned in the second displayarea DA2.

The display device 1 may display a first image (or a main image) byusing light emitted from the first pixels PX1 arranged in the firstdisplay area DA1, and may display a second image (or an auxiliary image)by using light emitted from the second pixels PX2 arranged in the seconddisplay area DA2. The first image and the second image may correspond toportions of the same image or may be independent images. According tosome example embodiments, a resolution of the second image provided inthe second display area DA2 may be less than a resolution of the firstimage provided in the first display area DA1.

The display device 1 may include an electronic component located in thesecond display area DA2, and the second display area DA2 may include atransmission area TA for driving of the electronic component.

FIG. 2 is a schematic cross-sectional view of a portion of the displaydevice 1 according to some example embodiments.

Referring to FIG. 2 , the display device 1 may include the display panel10 and an electronic component 20 overlapping the display panel 10.

The display panel 10 may include the substrate 100, a display layer 200on the substrate 100, a thin-film encapsulation layer 300 on the displaylayer 200, a touch sensing layer 40, an optical functional layer 50, anda light-blocking layer BML.

The substrate 100 may include glass or a polymer resin. The polymerresin may include polyethersulfone, polyacrylate, polyetherimide,polyethylene naphthalate, polyethylene terephthalate, polyphenylenesulfide, polyarylate, polyimide, polycarbonate, and cellulose acetatepropionate. The substrate 100 including the polymer resin may beflexible, rollable, or bendable. The substrate 100 may have amulti-layered structure including a layer including the polymer resin,and an inorganic layer.

The display layer 200 may be arranged on a first surface (e.g., a topsurface) of the substrate 100, and a bottom protective film 175 may bearranged on a second surface (e.g., a bottom surface) opposite to thefirst surface of the substrate 100. The bottom protective film 175 maybe attached on the second surface of the substrate 100. An adhesivelayer may be arranged between the bottom protective film 175 and thesubstrate 100. Alternatively, the bottom protective film 175 may bedirectly formed on the second surface of the substrate 100. In thiscase, an adhesive layer may not be arranged between the bottomprotective film 175 and the substrate 100.

The bottom protective film 175 may support and protect the substrate100. The bottom protective film 175 may include an opening 1750Pcorresponding to the second display area DA2. The bottom protective film175 may improve a transmittance of the second display area DA2, forexample, a light transmittance of the transmission area TA, by includingthe opening 1750P. The bottom protective film 175 may includepolyethylene terephthalate (PET) or polyimide (PI).

The display layer 200 may include a circuit layer, a display elementlayer, and an insulating layer IL, the circuit layer including athin-film transistor TFT, and the display element layer including anorganic light-emitting diode OLED, which is a display element. Thethin-film transistor TFT and an organic light-emitting diode OLEDelectrically connected to the thin-film transistor TFT may be arrangedin each of the first display area DA1 and the second display area DA2.The second display area DA2 may include the transmission area TA wherethe thin-film transistor TFT and the organic light-emitting diode OLEDare not arranged.

The transmission area TA is a region through which light output from theelectronic component 20 and/or directed to the electronic component 20may pass. A transmittance of the transmission area TA may about 50% ormore, about 60% or more, about 75% or more, about 80% or more, about 85%or more, or about 90% or more.

The thin-film encapsulation layer 300 may include at least one inorganicencapsulation layer and at least one organic encapsulation layer.According to some example embodiments, the thin-film encapsulation layer300 may include first and second inorganic encapsulation layers 310 and330 and an organic encapsulation layer 320 therebetween.

The touch sensing layer 40 may obtain coordinate information accordingto an external input, for example, a touch event. The touch sensinglayer 40 may include sensing electrodes and signal lines connected tothe sensing electrodes. The touch sensing layer 40 may sense an externalinput in a mutual cap manner or a self cap manner.

The touch sensing layer 40 may be formed on the thin-film encapsulationlayer 300. Alternatively, the touch sensing layer 40 may be separatelyformed and then coupled to the thin-film encapsulation layer 300 throughan adhesive layer such as an optically clear adhesive (OCA). Accordingto some example embodiments, as shown in FIG. 2 , the touch sensinglayer 40 may be directly formed on the thin-film encapsulation layer300. In this case, the adhesive layer may not be arranged between thetouch sensing layer 40 and the thin-film encapsulation layer 300.

The optical functional layer 50 may be formed on the touch sensing layer40. The optical functional layer 50 may include an anti-reflectionlayer. The anti-reflection layer may reduce a reflectivity of light(external light) incident toward the display panel 10 from the outside.

A light-blocking layer BML may be arranged between the substrate 100 andthe display layer 200. For example, the light-blocking layer BML may bearranged, for example, between the thin-film transistor TFT and thesubstrate 100.

The light-blocking layer BML may include an opening BML-OP correspondingto the transmission area TA. The light-blocking layer BML may define theopening BML-OP and include a portion including a light-blockingmaterial, for example, a metal or black ink, etc., provided to thelight-blocking layer BML. The portion of the light-blocking layer BMLincluding the light-blocking material may be arranged to cover the firstdisplay area DA1 and a portion of the second display area DA2. A portionof the light-blocking layer BML that covers the first display area DA1and a portion of the light-blocking layer BML that covers a portion ofthe second display area DA2 may be connected to each other as one body.For example, the light-blocking layer BML may be arranged to correspondto the first display area DA1 of the display panel 10 and an entireregion of the second display area DA2 except for the transmission areaTA.

As shown in FIG. 2 , the light-blocking layer BML may be arranged on thesubstrate 100. Alternatively, the light-blocking layer BML may bearranged in a multi-layered structure of the substrate 100. For example,the light-blocking layer BML may be arranged between a plurality ofsub-layers constituting the substrate 100. The light-blocking layer BMLis not an essential element and may be omitted according to embodiments.

The electronic component 20 may be located in the second display areaDA2. The electronic component 20 may include an electronic element thatuses light or sound. For example, the electronic element may include asensor measuring a distance such as a proximity sensor, a sensorrecognizing a portion (e.g., a fingerprint, an iris, a face, etc.) of auser's body, a small lamp outputting light, or an image sensor (e.g., acamera) that captures an image. The electronic element that uses lightmay use light in various wavelength bands including visible light,infrared light, and ultraviolet light. The electronic element that usessound may use ultrasonic waves or sound in other frequency bands.

One electronic component 20 or a plurality of electronic components 20may be arranged in the second display area DA2. According to someexample embodiments, the electronic component 20 may include a lightemitter and a light receiver. The light emitter and the light receivermay be provided as one integrated structure or a pair of light emitterand light receiver respectively having physically separated structuresmay constitute one electronic component 20.

FIG. 3 is an equivalent circuit diagram of a pixel circuit PC includedin the display device 1 according to some example embodiments.

Referring to FIG. 3 , the display panel 10 includes the pixel circuit PCincluding a plurality of thin-film transistors T1, T2, T3, T4, T5, T6,and T7 and a storage capacitor Cap. In addition, the display panel 10may include an organic light-emitting diode OLED as an emission element,the organic light-emitting diode OLED emitting light by receiving adriving voltage from the pixel circuit PC.

The pixel circuit PC may include a plurality of thin-film transistorsand a storage capacitor. According to some example embodiments, as shownin FIG. 3 , the thin-film transistors may include a driving thin-filmtransistor T1, a switching thin-film transistor T2, a compensationthin-film transistor T3, a first initialization thin-film transistor T4,an operation control thin-film transistor T5, an emission controlthin-film transistor T6, and a second initialization thin-filmtransistor T7. According to some example embodiments, the pixel circuitPC may include additional components, or fewer components, and thestructure of the pixel circuit PC may vary without departing from thespirit and scope of embodiments according to the present disclosure.

A gate electrode of the driving thin-film transistor T1 is connected toan electrode of the storage capacitor Cap, one of a source electrode anda drain electrode of the driving thin-film transistor T1 is connected toa driving voltage line PL through the operation control thin-filmtransistor T5, and the other of the source electrode and the drainelectrode of the driving thin-film transistor T1 is electricallyconnected to a pixel electrode of the organic light-emitting diode OLEDthrough the emission control thin-film transistor T6. The drivingthin-film transistor T1 is configured to receive a data signal Dmdepending on a switching operation of the switching thin-film transistorT2 and supply a driving current Id to the organic light-emitting diodeOLED.

A gate electrode of the switching thin-film transistor T2 is connectedto a first scan line SL, one of a source electrode and a drain electrodeof the switching thin-film transistor T2 is connected to a data line DL,and the other of the source electrode and the drain electrode of theswitching thin-film transistor T2 is connected to the driving thin-filmtransistor T1 and the driving voltage line PL through the operationcontrol thin-film transistor T5. The switching thin-film transistor T2is turned on in response to a scan signal Sn transferred through thefirst scan line SL and is configured to perform a switching operation oftransferring a data signal Dm transferred through the data line DL tothe driving thin-film transistor T1.

A gate electrode of the compensation thin-film transistor T3 isconnected to the first scan line SL, one of a source electrode and adrain electrode of the compensation thin-film transistor T3 is connectedto the driving thin-film transistor T1 and the pixel electrode of theorganic light-emitting diode OLED through the emission control thin-filmtransistor T6, and the other of the source electrode and the drainelectrode of the compensation thin-film transistor T3 is connected to anelectrode of the storage capacitor Cap, the first initializationthin-film transistor T4, and the driving thin-film transistor T1. Thecompensation thin-film transistor T3 is turned on in response to a scansignal Sn transferred through the first scan line SL and is configuredto diode-connect the driving thin-film transistor T1 by electricallyconnecting the gate electrode of the driving thin-film transistor T1 toone (e.g., the drain electrode) of the source electrode and the drainelectrode of the driving thin-film transistor T1.

A gate electrode of the first initialization thin-film transistor T4 isconnected to a second scan line SL−1, one of a source electrode and adrain electrode of the first initialization thin-film transistor T4 isconnected to a first initialization voltage line VL1, and the other ofthe source electrode and the drain electrode of the first initializationthin-film transistor T4 is connected to the electrode of the storagecapacitor Cap, the compensation thin-film transistor T3, and the drivingthin-film transistor T1. The first initialization thin-film transistorT4 is turned on in response to a previous scan signal Sn−1 transferredthrough the second scan line SL−1 and is configured to perform aninitialization operation of initializing a voltage of the gate electrodeof the driving thin-film transistor T1 by transferring an initializationvoltage Vint to the gate electrode of the driving thin-film transistorT1.

A gate electrode of the operation control thin-film transistor T5 isconnected to an emission control line EL, one of a source electrode anda drain electrode of the operation control thin-film transistor T5 isconnected to the driving voltage line PL, and the other of the sourceelectrode and the drain electrode of the operation control thin-filmtransistor T5 is connected to the driving thin-film transistor T1 andthe switching thin-film transistor T2.

A gate electrode of the emission control thin-film transistor T6 isconnected to the emission control line EL, one of a source electrode anda drain electrode of the emission control thin-film transistor T6 isconnected to the driving thin-film transistor T1 and the compensationthin-film transistor T3, and the other of the source electrode and thedrain electrode of the emission control thin-film transistor T6 iselectrically connected to the second initialization thin-film transistorT7 and the pixel electrode of the organic light-emitting diode OLED.

The operation control thin-film transistor T5 and the emission controlthin-film transistor T6 are simultaneously turned on in response to anemission control signal En transferred through the emission control lineEL to allow a driving voltage ELVDD to be transferred to the organiclight-emitting diode OLED, and thus, the driving current Id to flowthrough the organic light-emitting diode OLED.

A gate electrode of the second initialization thin-film transistor T7may be connected to a third scan line SL+1 of a pixel arranged on thenext row of a corresponding pixel PX. In addition, one of a sourceelectrode and a drain electrode of the second initialization thin-filmtransistor T7 is connected to the emission control thin-film transistorT6 and the pixel electrode of the organic light-emitting diode OLED, andthe other of the source electrode and the drain electrode of the secondinitialization thin-film transistor T7 is connected to a secondinitialization voltage line VL2.

The first scan line SL may be electrically connected to the third scanline SL+1, and thus, the same scan signal Sn may be applied to the thirdscan line SL+1. Therefore, the second initialization thin-filmtransistor T7 may be turned on in response to a scan signal Sntransferred through the third scan line SL+1 and may perform anoperation of initializing the pixel electrode of the organiclight-emitting diode OLED.

In another example, the first initialization thin-film transistor T4 andthe second initialization thin-film transistor T7 may be simultaneouslyconnected to the second scan line SL−1.

One electrode of the storage capacitor Cap is connected to the drivingvoltage line PL, and an opposite electrode of the organic light-emittingdiode OLED is connected to a common voltage ELVSS. Therefore, theorganic light-emitting diode OLED may display an image by receiving thedriving current Id from the driving thin-film transistor T1 and emittinglight.

Though it is shown in FIG. 3 that the pixel circuit PC includes seventhin-film transistors T1, T2, T3, T4, T5, T6, and T7 and one storagecapacitor Cap, the embodiments according to the present disclosure arenot limited thereto. The number of thin-film transistors and the numberof storage capacitors may be variously modified depending on the designof the pixel circuit PC.

FIG. 4 is a schematic plan view of a touch sensing layer 40 included inthe display device 1 according to some example embodiments.

Referring to FIG. 4 , the touch sensing layer 40 may include a pluralityof electrodes and signal lines. More specifically, the touch sensinglayer 40 may include a plurality of electrodes including first sensingelectrodes 410, first connection electrodes 411, second sensingelectrodes 420, and second connection electrodes 421, and signal linesincluding first signal lines 415-1, 415-2, 415-3, and 415-4 respectivelyconnected to the first sensing electrodes 410 and second signal lines425-1, 425-2, 425-3, 425-4, and 425-5 respectively connected to thesecond sensing electrodes 420.

The first sensing electrodes 410 may be arranged in a y-direction, andthe second sensing electrodes 420 may be arranged in an x-directionintersecting with the y-direction. The first sensing electrodes 410arranged in the y-direction may be connected to each other by a firstconnection electrode 411 between adjacent first sensing electrodes 410,and may form first sensing lines 410C1, 410C2, 410C3, and 410C4. Thesecond sensing electrodes 420 arranged in the x-direction may beconnected to each other by a second connection electrode 421 betweenadjacent second sensing electrodes 420, and may form second sensinglines 420R1, 420R2, 420R3, 420R4, and 420R5. The first sensing lines410C1 to 410C4 and the second sensing lines 420R1 to 420R5 may intersecteach other. For example, the first sensing lines 410C1 to 410C4 and thesecond sensing lines 420R1 to 420R5 may be perpendicular to each other.

The first sensing lines 410C1 to 410C4 may be connected to pads of asensing signal pad unit 440 through the first signal lines 415-1 to415-4 formed in the surrounding area SA. For example, each of the firstsignal lines 415-1 to 415-4 may have a double routing structure in whichthe first signal lines 415-1 to 415-4 are respectively connected toupper and lower sides of the first sensing lines 410C1 to 410C4. Each ofthe first signal lines 415-1 to 415-4 respectively connected to theupper and lower sides of the first sensing lines 410C1 to 410C4 may beconnected to corresponding first pads 441C1 and 441C2.

The second sensing lines 420R1 to 420R5 may be connected to the pads ofthe sensing signal pad unit 440 through the second signal lines 425-1 to425-5 formed in the surrounding area SA. For example, each of the secondsignal lines 425-1 to 425-5 may be connected to a corresponding secondpad 442R.

A ground line may be arranged in the surrounding area SA to preventdamage caused by static electricity introduced into the touch sensinglayer 40 from the outside, for example, static electricity introducedinto the surrounding area SA. In this regard, FIG. 4 illustrates a firstground line 461 extending along a left side and an upper side of thesurrounding area SA and a second ground line 462 extending along a rightside of the surrounding area SA. The first and second ground lines 461and 462 may be spaced apart from each other by a certain interval. Inthis regard, it is shown in FIG. 4 that the first and second groundlines 461 and 462 are spaced apart from each other in an area of thesurrounding area SA adjacent to an upper right side of a display areaDA. The first and second ground lines 461 and 462 may be connected tocorresponding pads 446 a and 446 b, respectively. Each of the first andsecond ground lines 461 and 462 may have a voltage level of a constantvoltage (e.g., a zero voltage, a negative direct-current (DC) voltage,or a positive DC voltage). The first and second ground lines 461 and 462may have constant voltages of different levels or constant voltages ofthe same level.

Guard lines may be arranged around a group of the first signal lines415-1 to 415-4 and a group of the second signal lines 425-1 to 425-5 inorder to prevent interference between adjacent lines or wires. Forexample, as shown in FIG. 4 , a first guard line 451 may be locatedbetween the first ground line 461 and a group of upper first signallines 415-1 to 415-4. A second guard line 452 may be located between thesecond ground line 462 and the group of the second signal lines 425-1 to425-5. A third guard line 453 may be located between the group of theupper first signal lines 415-1 to 415-4 and a group of lower firstsignal lines 415-1 to 415-4, and a fourth guard line 454 may be locatedbetween the group of the lower first signal lines 415-1 to 415-4 and thegroup of the second signal lines 425-1 to 425-5. The first to fourthguard lines 451, 452, 453, and 454 may be connected to correspondingpads 445 a, 445 b, 445 c and 445 d, respectively. Each of the first tofourth guard lines 451, 452, 453, and 454 may have a voltage level of aconstant voltage. For example, the first to fourth guard lines 451, 452,453, and 454 may have constant voltages of different levels or constantvoltages of the same level.

Although FIG. 4 illustrates a double routing structure in which thefirst signal lines 415-1 to 415-4 are respectively connected to theupper and lower sides of the first sensing lines 410C1 to 410C4, theembodiments according to the present disclosure are not limited thereto.According to some example embodiments, the first signal lines 415-1 to415-4 may be connected only to the upper side or the lower side of thefirst sensing lines 410C1 to 410C4.

FIG. 5 is a schematic cross-sectional view of a stacked structure of thetouch sensing layer 40 according to some example embodiments.

Referring to FIG. 5 , the touch sensing layer 40 may include a firstconductive layer 42 and a second conductive layer 44. A first insulatinglayer 41 may be arranged under the first conductive layer 42, a secondinsulating layer 43 may be arranged between the first conductive layer42 and the second conductive layer 44, and a third insulating layer 45may be arranged on the second conductive layer 44. Each of the firstsensing electrodes 410, the first connection electrodes 411, the secondsensing electrodes 420, and the second connection electrodes 421described with reference to FIG. 4 may be included in one of the firstconductive layer 42 and the second conductive layer 44.

The first and second conductive layers 42 and 44 may include a metallayer or a transparent conductive layer. The metal layer may includemolybdenum (Mo), mendelevium (Md), silver (Ag), titanium (Ti), copper(Cu), aluminum (Al), or an alloy thereof. The transparent conductivelayer may include a transparent conductive oxide such as indium tinoxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium tinzinc oxide (ITZO). In addition, the transparent conductive layer mayinclude a conductive polymer such as poly(3,4-ethylenedioxythiophene)(PEDOT), a metal nanowire, graphene, etc.

Each of the first and second conductive layers 42 and 44 may besingle-layered or multi-layered. The first and second conductive layers42 and 44 each including a single layer may include a single metal layeror a single transparent conductive layer, and materials of the metallayer and the transparent conductive layer are as described above. Oneof the first and second conductive layers 42 and 44 may include a singlemetal layer. The single metal layer may include a Mo layer or an alloylayer of MoMb.

One of the first and second conductive layers 42 and 44 may include amulti-layered metal layer. The multi-layered metal layer may include,for example, three layers of a Ti layer/an Al layer/a Ti layer, or twolayers of a Mo layer/a Mb layer. Alternatively, the multi-layered metallayer may include a metal layer and a transparent conductive layer. Thefirst and second conductive layers 42 and 44 may have different stackedstructures or the same stacked structure. For example, the firstconductive layer 42 may include a metal layer, and the second conductivelayer 44 may include a transparent conductive layer. Alternatively, thefirst and second conductive layers 42 and 44 may include the same metallayer.

Materials of the first and second conductive layers 42 and 44 andarrangements of the sensing electrodes (410 and 420 of FIG. 4 ) providedin the first and second conductive layers 42 and 44 may be determinedconsidering sensing sensitivity. A resistive-capacitive (RC) delay mayaffect the sensing sensitivity, and a resistance of each sensingelectrode including the metal layer is less than a resistance of thetransparent conductive layer, thereby reducing an RC value. Thus, thecharging time of a capacitor defined between the sensing electrodes maybe shortened. The sensing electrodes including the transparentconductive layer may not be visible to a user as compared with the metallayer, and an input area may be increased to increase capacitance.

Each of the first to third insulating layers 41, 43, and 45 may includean inorganic insulating material and/or an organic insulating material.The inorganic insulating material may include silicon oxide, siliconnitride, or silicon oxynitride, and the organic insulating material mayinclude a polymer organic material.

Some of the first and second sensing electrodes 410 and 420 and thefirst and second connection electrodes 411 and 421 described withreference to FIG. 4 may be arranged on the first conductive layer 42,and the others may be arranged on the second conductive layer 44.

According to some example embodiments, the first conductive layer 42 mayinclude the first connection electrodes 411 (see FIG. 4 ), and thesecond conductive layer 44 may include the first and second sensingelectrodes 410 and 420 (see FIG. 4 ) and the second connectionelectrodes 421 (see FIG. 4 ). According to some example embodiments, thefirst conductive layer 42 may include the first and second sensingelectrodes 410 and 420 and the second connection electrodes 421, and thesecond conductive layer 44 may include the first connection electrodes411. According to some example embodiments, the first conductive layer42 may include the first sensing electrodes 410 and the first connectionelectrodes 411, and the second conductive layer 44 may include thesecond sensing electrodes 420 and the second connection electrodes 421.In this case, the first sensing electrodes 410 and the first connectionelectrodes 411 may be provided on the same layer to be integrallyconnected to each other, and the second sensing electrodes 420 and thesecond connection electrodes 421 may also be provided on the same layer,and thus, a contact hole may not be provided in an insulating layerbetween the first conductive layer 42 and the second conductive layer44.

Although it is shown in FIG. 5 that the touch sensing layer 40 includesthe first insulating layer 41, the first conductive layer 42, the secondinsulating layer 43, the second conductive layer 44, and the thirdinsulating layer 45, according to some example embodiments, the firstinsulating layer 41 under the first conductive layer 42 may be omitted.

FIG. 6 is a schematic plan view of the first conductive layer 42 of thetouch sensing layer 40 included in the display device 1 according tosome example embodiments, and FIG. 7 is a schematic plan view of thesecond conductive layer 44 of the touch sensing layer 40 included in thedisplay device 1 according to some example embodiments. FIGS. 6 and 7illustrate the first conductive layer 42 and the second conductive layer44 in the first display area DA1 of the touch sensing layer 40,respectively.

Each of the first and second sensing electrodes 410 and 420 and thefirst and second connection electrodes 411 and 421 may have a mesh (orgrid) pattern. When the first and second sensing electrodes 410 and 420include a metal layer, the first and second sensing electrodes 410 and420 may have a mesh pattern as shown in FIGS. 6 and 7 in order toprevent the first and second sensing electrodes 410 and 420 from beingvisible to a user and/or to transmit light emitted from each pixel.

Referring to FIG. 6 , the first conductive layer 42 of the touch sensinglayer 40 may include the first connection electrode 411. The firstconnection electrode 411 may include a first conductive line CL1 havinga mesh pattern and may include an opening 411OP surrounded by the firstconductive line CL1. The opening 411OP may be arranged to overlap thefirst pixel PX1 of the display panel 10.

The first connection electrodes 411 may electrically connect the firstsensing electrodes 410 to each other, the first sensing electrodes 410being formed on a different layer from the first connection electrodes411. The first connection electrode 411 electrically connecting theadjacent first sensing electrodes 410 may be connected to the firstsensing electrodes 410 through contact holes CNT formed in the secondinsulating layer 43 (see FIG. 5 ).

Referring to FIG. 7 , the second conductive layer 44 of the touchsensing layer 40 may include a first sensing electrode 410, a secondsensing electrode 420, and a second connection electrode 421. The firstsensing electrode 410, the second sensing electrode 420, and the secondconnection electrode 421 may include a first conductive line CL1 havinga mesh pattern, and may include openings 410OP, 420OP, and 421OPsurrounded by the first conductive line CL1, respectively. The openings410OP, 420OP, and 421OP may be arranged to overlap the first pixel PX1of the display panel 10.

The second sensing electrodes 420 may be connected to each other by thesecond connection electrodes 421 formed on the same layer as the secondsensing electrodes 420. For example, the second sensing electrodes 420may include the same material as the second connection electrodes 421and may be integrally formed therewith.

The first sensing electrodes 410 may be electrically connected to eachother by the first connection electrodes 411 formed on a different layerfrom the first sensing electrodes 410. The first sensing electrodes 410may be connected to the first sensing electrodes 410 through the contactholes CNT formed in the second insulating layer 43 (see FIG. 5 ).

FIG. 8 is a schematic enlarged plan view of the display device 1according to some example embodiments. FIG. 8 illustrates the seconddisplay area DA2 of the display device 1 and the touch sensing layer 40arranged in a portion of the first display area DA1 adjacent to thesecond display area DA2.

Referring to FIG. 8 , a first pixel array in which a plurality of firstpixels PX1 are two-dimensionally arranged in an x-direction and ay-direction that is different from the x-direction may be located in thefirst display area DA1. A second pixel array in which a plurality ofsecond pixels PX2 are two-dimensionally arranged in the x-direction andy-direction and are spaced apart from each other with a transmissionarea therebetween may be located in the second display area DA2.

The number of first pixels PX1 in the first display area DA1 per thesame area may be greater than the number of second pixels PX2 in thesecond display area DA2 per the same area. Accordingly, a resolution ofa first image provided in the first display area DA1 may be higher thana resolution of a second image provided in the second display area DA2.

As described with reference to FIGS. 6 and 7 , a plurality of electrodesincluding first conductive lines CL1 and second conductive lines CL2having a mesh pattern may be arranged on the display panel 10 includingthe plurality of pixels PX.

At least one of the first sensing electrode 410, the second sensingelectrode 420, the first connection electrode 411, and the secondconnection electrode 421 may at least partially overlap the seconddisplay area DA2. According to some example embodiments, it is shown inFIG. 8 that the first sensing electrode 410, the second sensingelectrode 420, the first connection electrode 411, and the secondconnection electrode 421 at least partially overlap the second displayarea DA2.

Referring to FIG. 8 , the first sensing electrodes 410 arranged in they-direction and the second sensing electrodes 420 arranged in thex-direction may be arranged over a boundary between the first displayarea DA1 and the second display area DA2. In addition, a firstconnection electrode 411 and a second connection electrode 421 may bearranged in the second display area DA2.

As a comparative example, a plurality of electrodes may not be arrangedin the second display area DA2. In this case, coordinate informationaccording to an external input, for example, a touch event, may not beobtained in the second display area DA2. In addition, the sensingsensitivity may be deteriorated in an area of the first display area DA1adjacent to the second display area DA2.

However, according to some example embodiments, because a plurality ofelectrodes are arranged in the second display area DA2 as well as thefirst display area DA1, coordinate information according to a touchevent may be obtained in the second display area DA2. Further, thedeterioration of sensing sensitivity that may occur in the area of thefirst display area DA1 adjacent to the second display area DA2 may beprevented or minimized.

Wires WL electrically connecting the pixel circuits PC (see FIG. 3 )included in the display panel 10 may be arranged in the second displayarea DA2.

Hereinafter, the arrangements of a pixel, a transmission area, a wiringarea, and a touch sensing layer will be described in more detail withreference to FIGS. 9 and 10 .

FIG. 9 is a schematic enlarged plan view of the display panel 10according to some example embodiments, illustrating arrangements of apixel, a transmission area, a wiring area, and a touch sensing layerincluded in the display panel 10. FIG. 9 may correspond to a region IXof FIG. 8 .

Referring to FIG. 9 , the plurality of second pixels PX2 arranged in thesecond display area DA2 may be grouped in a preset unit to constituteone pixel group PG. For example, in FIG. 9 , 8 second pixels PX2 aredefined to constitute one pixel group PG, but the embodiments accordingto the present disclosure are not limited thereto. The number of secondpixels PX2 constituting one pixel group PG may be modified according toa resolution of the second display area DA2.

Referring to FIG. 9 , pixel groups PG formed by the plurality of secondpixels PX2 may include a first group of second pixels PX21 and a secondgroup of second pixels PX22, and the first group of second pixels PX21and the second group of second pixels PX22 may be spaced apart from eachother with a transmission area TA therebetween. The first group ofsecond pixels PX21 and the second group of second pixels PX22 may betwo-dimensionally arranged in the x-direction and the y-direction. Thepixel groups PG and transmission areas TA are repeatedly arranged, andthus, the second pixel array may be formed.

A plurality of wires WL electrically connecting the pixel circuits PC(see FIG. 3 ) respectively corresponding to the second pixels PX2 may bearranged in the second display area DA2. The wires WL include at leastone first wire WL1 and at least one second wire WL2 that extend in adirection intersecting each other. The first wire WL1 may include thedata line DL (see FIG. 3 ) or the driving voltage line PL (see FIG. 3 ),and the second wire WL2 may include the scan lines SL−1, SL, and SL+1(see FIG. 3 ).

The first wire WL1 may be entirely arranged to extend in the y-directionto connect the pixel circuits PC respectively corresponding to thesecond pixels PX2 arranged in the same column. The second wire WL2 maybe entirely arranged to extend in the x-direction to connect the pixelcircuits PC respectively corresponding to the second pixels PX2 arrangedin the same row. The x-direction and the y-direction may be orthogonalto each other or may be different directions that are not orthogonal toeach other.

The transmission area TA may be defined as an area of the second displayarea DA2 excluding a pixel area PA where the second pixels PX2 and thepixel circuits PC corresponding thereto are located and a wiring area WAwhere the wires WL are located.

The wiring area WA may include a first wiring area WA1 and a secondwiring area WA2, the first wiring area WA1 may include an area where atleast one first wire WL1 is located and an area between adjacent firstwires WL1, and the second wiring area WA2 may include an area where atleast one second wire WL2 is located and an area between adjacent secondwires WL2. Referring to FIG. 9 , the pixel area PA is indicated by adotted line, and the wiring area WA is indicated by a two-dot line. Ashape of the transmission area TA may be variously formed such as apolygon including a quadrangle, a circle, an ellipse, and a diamondaccording to arrangements and shapes of the second pixels PX2 and thewires WL.

Referring to FIG. 9 , the touch sensing layer 40 (see FIG. 4 ) may bearranged on the display panel 10, and the touch sensing layer 40 (seeFIG. 4 ) may include a plurality of electrodes, that is, first sensingelectrodes 410 (see FIG. 4 ), second sensing electrodes 420 (see FIG. 4), first connection electrodes 411 (see FIG. 4 ), and second connectionelectrodes 421 (see FIG. 4 ).

The electrodes may include first conductive lines CL1 arranged on thefirst display area DA1 and second conductive lines CL2 arranged on thesecond display area DA2. The first conductive lines CL1 and the secondconductive lines CL2 may include the same material and may be integrallyformed therewith.

The first conductive lines CL1 may include a mesh pattern having aplurality of first openings CL1-OP respectively corresponding to atleast one first pixel PX1 of the first pixels PX1 arranged on the firstdisplay area DA1. The second conductive lines CL2 may include a meshpattern having a plurality of second openings CL2-OP respectivelycorresponding to at least one second pixel PX2 of the second pixels PX2arranged on the second display area DA2. At least one conductive lineCL2-C of the second conductive lines CL2 may extend in the y-directionor the x-direction intersecting with the y-direction between adjacentpixel groups PG. The first conductive lines CL1 and the secondconductive lines CL2 may include a mesh pattern to prevent the firstconductive lines CL1 and the second conductive lines CL2 from beingvisible to a user when the first conductive lines CL1 and the secondconductive lines CL2 include a metal and/or to transmit light emittedfrom each pixel PX.

The first conductive lines CL1 may be arranged between two adjacentfirst pixels PX1 of the first pixels PX1, and the second conductivelines CL2 may be arranged between two adjacent second pixels PX2 of thesecond pixels PX2. The second conductive lines CL2 may include a firstgroup of second conductive lines CL21 arranged between at least twosecond pixels PX2 of the first group of second pixels PX21 and a secondgroup of second conductive lines CL22 arranged between at least twosecond pixels PX2 of the second group of second pixels PX22.

For example, referring to FIG. 9 , at least one conductive line CL2-C ofthe second conductive lines CL2 may extend from the first group ofsecond conductive lines CL21 in the x-direction to be connected to thesecond group of second conductive lines CL22 adjacent thereto. Inaddition, the at least one conductive line CL2-C of the secondconductive lines CL2 may extend in the y-direction from the first groupof second conductive lines CL21 to be connected to the second group ofsecond conductive lines CL22 adjacent thereto. That is, the at least oneconductive line CL2-C of the second conductive lines CL2 may extendbetween the first group of second conductive lines CL21 and the secondgroup of second conductive lines CL22 to connect the first group ofsecond conductive lines CL21 to the second group of second conductivelines CL22.

The at least one conductive line CL2-C of the second conductive linesCL2 may be integrally formed with the first group of second conductivelines CL21 and/or the second group of second conductive lines CL22, andmay include the same material therewith.

In order to minimize a reduction in an area of the transmission area TA,the second conductive lines CL2 may be arranged to overlap the pixelarea PA and the wiring area WA. That is, the first group of secondconductive lines CL21 may overlap an area where the first group ofsecond pixels PX21 is located, and the second group of the secondconductive lines CL22 may overlap an area where the second group ofsecond pixels PX22 is located. In addition, the at least one conductiveline CL2-C of the second conductive lines CL2 that connects the firstgroup of second pixels PX21 to the second group of second pixels PX22may be arranged adjacent to the first wires WL1 or the second wires WL2,and thus, at least a portion thereof may overlap the first wires WL1 orthe second wires WL2. The at least one conductive line CL2-C of thesecond conductive lines CL2 may overlap the first wiring area WA1 or thesecond wiring area WA2.

Referring to FIG. 9 , a width WD2 of the second conductive line CL2 maybe greater than a width WD1 of the first conductive line CL1. The RCdelay may affect the sensing sensitivity, and when the width of theconductive lines CL included in the plurality of electrodes isincreased, an input area is also increased, which may increasecapacitance of the conductive lines CL, thereby improving the sensingsensitivity.

Because the second display area DA2 includes the transmission area TAwhere the second conductive lines CL2 are not arranged unlike the firstdisplay area DA1, an area of the conductive line CL arranged per thesame area in the second display area DA2 may be less than an area of theconductive line CL arranged per the same area in the first display areaDA1 per the same area. Therefore, sensing sensitivity in the seconddisplay area DA2 may be lower than sensing sensitivity in the firstdisplay area DA1. In order to solve this issue, the width WD2 of thesecond conductive line CL2 arranged in the second display area DA2 maybe formed greater than the width WD1 of the first conductive line CL1arranged in the first display area DA1, and thus, the sensingsensitivity in the second display area DA2 may be improved.

FIG. 10 is a schematic enlarged plan view of the display device 1according to some example embodiments, illustrating arrangements of apixel, a transmission area, a wiring area, and a touch sensing layerincluded in the display panel 10. FIG. 10 may correspond to a region Xof FIG. 9 . The arrangements of the second pixels PX2, the transmissionarea TA, and the wires WL in the second display area DA2 are the same asthose described with reference to FIG. 9 , differences therebetween willbe mainly described below.

Referring to FIG. 10 , a pixel group PG formed by a plurality of secondpixels PX2 may include a first group of second pixels PX21 and a secondgroup of second pixels PX22 arranged in the x-direction. In addition,the pixel group PG may include a third group of second pixels PX23 and afourth group of second pixels PX24 arranged in the y-direction differentfrom the x-direction.

For example, in FIG. 10 , the first group of second pixels PX21 isarranged between the third group of second pixels PX23 and the fourthgroup of second pixels PX24. The second group of second pixels PX22 maybe arranged adjacent to the first group of second pixels PX21 in thex-direction. The second group of second pixels PX22 may be arrangedbetween the third group of second pixels PX23 and the fourth group ofsecond pixels PX24. In this case, the first group of second pixels PX21may be arranged adjacent to the second group of second pixels PX22 inthe x-direction.

The second conductive lines CL2 may include a third group of secondconductive lines CL23 located between at least two second pixels PX2 ofthe third group of second pixels PX23. In addition, the secondconductive lines CL2 may include a fourth group of second conductivelines CL24 located between at least two second pixels PX2 of the fourthgroup of second pixels PX24.

The touch sensing layer 40 may include a connection conductive line CCLthat may electrically connect the third group of second conductive linesCL23 to the fourth group of second conductive lines CL24. For example,referring to FIG. 10 , the connection conductive line CCL may extendfrom the third group of second conductive lines CL23 in the y-directionto be connected to the fourth group of second conductive lines CL24. Theconnection conductive line CCL may include the same material as thesecond conductive lines CL2. The connection conductive line CCL may beincluded in the first connection electrode 411 described with referenceto FIG. 4 .

The connection conductive line CCL may be arranged adjacent to the firstwire WL1, and at least a portion thereof may overlap the first wire WL1.The connection conductive line CCL may be arranged to overlap the firstwiring area WA1. Further, a width WD3 of the connection conductive lineCCL may be less than a width WD4 of the first wiring area WA1.Accordingly, a reduction in the area of the transmission area TA due tothe connection conductive line CCL may be prevented or minimized.

The connection conductive line CCL may extend through the first group ofsecond pixels PX21 or the second group of second pixels PX22 arrangedbetween the third group of second pixels PX23 and the fourth group ofsecond pixels PX24. The connection conductive line CCL may overlap thefirst group of second conductive lines CL21 or the second group ofsecond conductive lines CL22. Accordingly, the connection conductiveline CCL may be prevented from overlapping the second pixels PX2 andblocking light emitted from the second pixels PX2.

In FIG. 10 , at least one conductive line CL2-C of second conductivelines CL2 connecting the first group of second conductive lines CL21 tothe second group of second conductive lines CL22 may be included in thesecond connection electrode 421 described with reference to FIG. 4 . Inaddition, second conductive lines CL2 connecting adjacent second sensingelectrodes 420 may be included in the second connection electrode 421.

An insulating layer may be arranged between the connection conductiveline CCL and the third group of second conductive lines CL23 and betweenthe connection conductive line CCL and the fourth group of secondconductive lines CL24. The connection conductive lines CCL may beconnected to the third group of second conductive lines CL23 and thefourth group of second conductive lines CL24 through contact holes CNTof the insulating layer, respectively. The insulating layer may be thesecond insulating layer 43 (see FIG. 5 ). In order to secure asufficient connection area, the contact holes CNT may be positioned tooverlap the third group of second conductive lines CL23 and the fourthgroup of second conductive lines CL24.

FIG. 11 is a schematic cross-sectional view of the display deviceaccording to some example embodiments, illustrating arrangements of afirst conductive layer and a second conductive layer of the touchsensing layer 40.

Referring to FIG. 11 , the substrate 100 may be a transparent insulatingsubstrate including materials such as glass and quartz and have asingle-layered structure. According to some example embodiments, thesubstrate 100 may have a multi-layered structure including a base layerand an inorganic layer, the base layer including a polymer resin.

A buffer layer 111 may be arranged over the substrate 100. The bufferlayer 111 may reduce or block the penetration of foreign substances,moisture, or external air from below the substrate 100 and provide aflat surface on the substrate 100. The buffer layer 111 may include aninorganic insulating material such as silicon oxide, silicon oxynitride,and silicon nitride and have a single-layered or multi-layered structureincluding the above materials.

The pixel circuit PC may be arranged on the buffer layer 111, the pixelcircuit PC including the thin-film transistor TFT and the storagecapacitor Cap. The pixel circuits PC may be respectively arranged in thefirst display area DA1 and the second display area DA2. The pixelcircuit PC in the first display area DA1 and the pixel circuit PC in thesecond display area DA2 may have the same structure.

The light-blocking layer BML may be arranged between the pixel circuitPC arranged in the second display area DA2 and the substrate 100. Thoughit is shown in FIG. 11 that the light-blocking layer BML is arrangedbetween the substrate 100 and the buffer layer 111, the light-blockinglayer BML may be arranged between the plurality of sub-layersconstituting the substrate 100. The light-blocking layer BML may includea light-blocking material. e.g. a metal, black ink, dye, etc.

The light-blocking layer BML may prevent light that is emitted from theelectronic component 20 or directed to the electronic component 20 frombeing diffracted through a narrow slit between wires connected to thepixel circuit PC (see FIG. 3 ) and prevent light that is emitted fromthe electronic component 20 from being incident to the pixel circuit PC.Accordingly, the performance of the thin-film transistor TFT may beimproved. The light-blocking layer BML may be connected to at least oneof a source electrode, a drain electrode, and a gate electrode of thethin-film transistor and may be arranged in a floating state accordingto some example embodiments.

The thin-film transistor TFT may include a semiconductor layer A1, agate electrode G1, a source electrode S1, and a drain electrode D1, thegate electrode G1 overlapping a channel region of the semiconductorlayer A1, and the source electrode S1 and the drain electrode D1 beingrespectively connected to a source region and a drain region of thesemiconductor layer A1. A gate insulating layer 112 is arranged betweenthe semiconductor layer A1 and the gate electrode G1. A first interlayerinsulating layer 113 and a second interlayer insulating layer 115 may bearranged between the gate electrode G1 and the source electrode S1 orbetween the gate electrode G1 and the drain electrode D1.

The storage capacitor Cap may overlap the thin-film transistor TFT. Thestorage capacitor Cap may include a first capacitor plate CE1 and asecond capacitor plate CE2 overlapping each other. According to someexample embodiments, the gate electrode G1 of the thin-film transistorTFT may include the first capacitor plate CE1 of the storage capacitorCap. The first interlayer insulating layer 113 may be arranged betweenthe first capacitor plate CE1 and the second capacitor plate CE2.

The semiconductor layer A1 may include polycrystalline silicon.According to some example embodiments, the semiconductor layer A1 mayinclude amorphous silicon. According to some example embodiments, thesemiconductor layer A1 may include an oxide of at least one of indium(In), gallium (Ga), stannum (Sn), zirconium (Zr), vanadium (V), hafnium(Hf), cadmium (Cd), germanium (Ge), chrome (Cr), Ti, and zinc (Zn). Thesemiconductor layer A1 may include the channel region, the sourceregion, and the drain region, the source region and the drain regionbeing doped with impurities.

The gate insulating layer 112 may include an inorganic insulatingmaterial such as silicon oxide, silicon oxynitride, and silicon nitrideand have a single-layered or multi-layered structure including the abovematerials.

The gate electrode G1 or the first capacitor plate CE1 may include alow-resistance conductive material including Mo, Al, Cu, and/or Ti andhave a single-layered or multi-layered structure including the abovematerials.

The first interlayer insulating layer 113 may include an inorganicinsulating material such as silicon oxide, silicon oxynitride, andsilicon nitride and have a single layered or multi-layered structureincluding the above materials.

The second capacitor plate CE2 may include Al, platinum (Pt), palladium(Pd), Ag, magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd),iridium (Ir), Cr, calcium (Ca), Mo, Ti, tungsten (W), and/or Cu and havea single-layered or multi-layered structure including the abovematerials.

The second interlayer insulating layer 115 may include an inorganicinsulating material such as silicon oxide, silicon oxynitride, andsilicon nitride and have a single-layered or multi-layered structureincluding the above materials.

The source electrode S1 or the drain electrode D1 may include Al, Pt,Pd, Ag, Mg, Au, Ni, Nd, Ir, Cr, Ca, Mo, Ti, W, and/or Cu and have asingle-layered or multi-layered structure including the above materials.For example, the source electrode S1 or the drain electrode D1 may havea three-layered structure of a Ti layer/Al layer/Ti layer.

The pixel circuit PC may be electrically connected to a pixel electrode210, the pixel circuit PC including the thin-film transistor TFT and thestorage capacitor Cap. According to some example embodiments, as shownin FIG. 11 , the pixel circuit PC may be electrically connected to thepixel electrode 210 by a contact metal CM.

The contact metal CM may be arranged on a first planarization insulatinglayer 117 and connected to the pixel circuit PC through a contact holeformed in the first planarization insulating layer 117. The contactmetal CM may include Al, Pt, Pd, Ag, Mg, Au, Ni, Nd, Ir, Cr, Ca, Mo, Ti,W, and/or Cu and have a single-layered or multi-layered structureincluding the above materials.

The first planarization insulating layer 117 may include an organicinsulating material. The first planarization insulating layer 117 mayinclude an organic insulating material such as acryl, benzocyclobutene(BCB), polyimide, and hexamethyldisiloxane (HMDSO). The organicinsulating material of the first planarization insulating layer 117 mayinclude a photosensitive organic insulating material.

A second planarization insulating layer 118 is arranged on the contactmetal CM. The second planarization insulating layer 118 may include anorganic insulating material. The second planarization insulating layer118 may include an organic insulating material such as acryl, BCB,polyimide, and HMDSO. The organic insulating material of the secondplanarization insulating layer 118 may include a photosensitive organicinsulating material.

The pixel electrode 210 may be arranged on the second planarizationinsulating layer 118. The pixel electrode 210 may be connected to thecontact metal CM through a contact hole of the second planarizationinsulating layer 118.

The pixel electrode 210 may include a reflective layer including Ag, Mg,Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or a compound thereof. The pixelelectrode 210 may include the reflective layer including the abovematerial and a transparent conductive layer on and/or under thereflective layer. The transparent conductive layer may include ITO, IZO,ZnO, indium oxide (In₂O₃), indium gallium oxide (IGO), and aluminum zincoxide (AZO). According to some example embodiments, the pixel electrode210 may have a three-layered structure of ITO layer/Ag layer/ITO layerthat are sequentially stacked.

A pixel-defining layer 119 may be arranged on the pixel electrode 210.The pixel-defining layer 119 may cover edges of the pixel electrode 210and include an opening 119OP overlapping a central portion of the pixelelectrode 210.

The pixel-defining layer 119 may prevent an arc, etc. from occurring atthe edges of the pixel electrode 210 by increasing a distance betweenthe edges of the pixel electrode 210 and an opposite electrode 230 overthe pixel electrode 210. The pixel-defining layer 119 may include anorganic insulating material such as polyimide, polyamide, an acrylicresin, BCB, HMDSO, and a phenolic resin. The pixel-defining layer 119may be formed by a method such as spin coating.

An intermediate layer 220 is arranged on the pixel-defining layer 119 tocorrespond to the pixel electrode 210. The intermediate layer 220 mayinclude a polymer organic material or a low molecular weight organicmaterial emitting light having a color (e.g., a set or predeterminedcolor).

The opposite electrode 230 is arranged on the intermediate layer 220.The opposite electrode 230 may include a conductive material having arelatively low work function. For example, the opposite electrode 230may include a (semi)-transparent layer including Ag, Mg, Al, Ni, Cr,lithium (Li), Ca, or an alloy thereof. Alternatively, the oppositeelectrode 230 may further include a layer including ITO, IZO, ZnO, orIn₂O₃ on/under the (semi)-transparent layer including the abovematerials. According to some example embodiments, the opposite electrode230 may include Ag and Mg. The opposite electrode 230 may be formed asone body to entirely cover the first and second display areas DA1 andDA2 (see FIG. 1 ).

A stacked structure of the pixel electrode 210, the intermediate layer220, and the opposite electrode 230 that are stacked may constitute alight-emitting diode, for example, an organic light-emitting diode OLED.The organic light-emitting diode OLED may emit red, green, or bluelight. An emission area of each organic light-emitting diode OLEDcorresponds to a pixel. For example, the first pixel PX1 corresponds toan emission area of an organic light-emitting diode OLED arranged in thefirst display area DA1, and the second pixel PX2 corresponds to anemission area of an organic light-emitting diode OLED arranged in thesecond display area DA2. Because the opening 119OP of the pixel-defininglayer 119 defines a size and/or a width of an emission area, a sizeand/or a width of the first pixel PX1 and the second pixel PX2 maydepend on the opening 119OP of the pixel-defining layer 119.

A capping layer 250 may be formed on the opposite electrode 230. Thecapping layer 250 may include lithium fluoride (LiF). Alternatively, thecapping layer 250 may include an inorganic insulating material such assilicon nitride and/or include an organic insulating material. Accordingto some example embodiments, the capping layer 250 may be omitted.

The thin-film encapsulation layer 300 may be arranged on the cappinglayer 250. The organic light-emitting diode OLED may be covered by thethin-film encapsulation layer 300. The thin-film encapsulation layer 300may include the first and second inorganic encapsulation layers 310 and330 and the organic encapsulation layer 320 therebetween.

Each of the first and second inorganic encapsulation layers 310 and 330may include at least one inorganic insulating material. The inorganicinsulating material may include aluminum oxide, titanium oxide, tantalumoxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and/orsilicon oxynitride. The first and second inorganic encapsulation layers310 and 330 may be formed by chemical vapor deposition.

The organic encapsulation layer 320 may include a polymer-basedmaterial. The polymer-based material may include an acryl-based resin,an epoxy-based resin, polyimide, and polyethylene. For example, theorganic encapsulation layer 320 may include an acryl-based resin, forexample, polymethyl methacrylate, a polyacrylic acid, etc. The organicencapsulation layer 320 may be formed by hardening a monomer or coatinga polymer.

The touch sensing layer 40 may be arranged on the thin-filmencapsulation layer 300. The touch sensing layer 40 may include thefirst insulating layer 41, the first conductive layer 42, the secondinsulating layer 43, the second conductive layer 44, and the thirdinsulating layer 45 that are sequentially stacked as described abovewith reference to FIG. 5 .

In FIG. 11 , the first conductive layer 42 may include the firstconnection electrode 411 (see FIG. 10 ), and the first connectionelectrode 411 (see FIG. 10 ) may include the connection conductive lineCCL. The connection conductive line CCL may be arranged to overlap thepixel-defining layer 119 located between adjacent second pixels PX2. Inaddition, the second conductive layer 44 may include the second sensingelectrode 420 (see FIG. 10 ) and may be the second conductive lines CL2included in the second sensing electrode 420. The second conductivelines CL2 may be arranged to overlap the pixel-defining layer 119.Accordingly, the second conductive lines CL2 may be arranged tocorrespond to the pixel-defining layer 119 located between two adjacentsecond pixels PX2 among the plurality of second pixels PX2 constitutingthe pixel groups PG described with reference to FIG. 10 . According tosome example embodiments, the first conductive lines CL1 may be arrangedto overlap the pixel-defining layer 119 located between the first pixelsPX1 in the first display area DA1. Accordingly, blocking of lightemitted from an emission area of the organic light-emitting diode OLEDmay be prevented or minimized.

FIG. 12 is a schematic cross-sectional view of the display deviceaccording to some example embodiments, illustrating arrangements of thefirst conductive layer 42 and the second conductive layer 44 of thetouch sensing layer 40. FIG. 12 may correspond to the cross-section ofthe display device taken along the line B-B′, the cross-section of thedisplay device taken along C-C′, and the cross-section of the displaydevice taken along the line D-D′.

Because the stacked structure of the display panel 10 and the touchsensing layer 40 is the same as that described with reference to FIG. 11, differences therebetween will be mainly described below, and somerepetitive description of certain components may be omitted.

Referring to a transmission area TA in the cross-section of the displaydevice taken along line B-B′ in FIG. 12 , insulating layers on thesubstrate 100 may each include a hole formed in the transmission areaTA. For example, the gate insulating layer 112, the first interlayerinsulating layer 113, the second interlayer insulating layer 115, thefirst planarization insulating layer 117, the second planarizationinsulating layer 118, and the pixel-defining layer 119 each may belocated in the transmission area TA and may respectively include firstto sixth holes H1, H2, H3, H4, H5, and H6 that overlap one another. Inaddition, the opposite electrode 230 may include a hole 230H in thetransmission area TA. There is no light-blocking layer BML in thetransmission area TA. For example, the light-blocking layer BML mayinclude an opening BML-OP corresponding to the transmission area TA. Theopening BML-OP of the light-blocking layer BML may be defined by edgesBML-E of the light-blocking layer BML. Through this, a lighttransmittance of the transmission area TA may be improved. Referring tothe touch sensing layer 40 in the cross-section of the display devicetaken along line B-B′ in FIG. 12 , the second conductive layer 44including the second conductive lines CL2 may be arranged on the secondinsulating layer 43. The second conductive lines CL2 may overlap apixel-defining layer 119 that covers edges of the pixel electrode 210located in the second display area DA2. Because the second conductivelines CL2 are not arranged on the transmission area TA, even if thesecond conductive lines CL2 include a metal layer, deterioration of thelight transmittance in the transmission area TA may be prevented. Inaddition, the second conductive lines CL2 do not overlap the secondpixel PX2, and thus, blocking of light emitted from the emission area ofthe organic light-emitting diode OLED may be prevented or minimized.

The pixel circuit PC, the pixel electrode 210, and the second conductiveline CL2 may not overlap the opening BML-OP of the light-blocking layerBML and may be positioned in an area where the light-blocking layer BMLis arranged. For example, the edges BML-E of the light-blocking layerBML may be arranged closer to the transmission area TA than to the pixelcircuit PC, the pixel electrode 210, and the second conductive line CL2,and edges of the second conductive line CL2 adjacent to the transmissionarea TA may be on the same line as at least the edges BML-E of thelight-blocking layer BML.

Referring to the cross-section of the display device taken along lineC-C′ in FIG. 12 , the second wires WL2 may be arranged on the gateinsulating layer 112. An area in which the second wires WL2 are arrangedand an area between adjacent second wires WL2 may be defined as a secondwiring area WA2. The second wires WL2 may include the scan lines SL,SL−1, and SL+1 (see FIG. 3 ) or the emission control line EL (see FIG. 3).

At least one conductive line CL2-C of the second conductive lines CL2may be arranged on the second insulating layer 43. In addition, at leastone conductive line CL2-C of the second conductive lines CL2 may bearranged to overlap the second wiring area WA2. Accordingly, because atleast one conductive line CL2-C of the second conductive lines CL2 isnot arranged on the transmission area TA, deterioration of the lighttransmittance in the transmission area TA may be prevented.

Referring to the cross-section of the display device taken along lineD-D′ in FIG. 12 , the first wires WL1 may be arranged on the secondinterlayer insulating layer 115. An area in which the first wires WL1are arranged and an area between adjacent first wires WL1 may be definedas a first wiring area WA1. The first wires WL1 may include the dataline DL (see FIG. 3 ) or the driving voltage line PL (see FIG. 3 ).

The connection conductive line CCL may be arranged on the firstinsulating layer 41. Further, the connection conductive line CCL may bearranged to overlap the first wiring area WA1. Accordingly, because theconnection conductive line CCL is not arranged on the transmission areaTA, deterioration of the light transmittance in the transmission area TAmay be prevented.

The light-blocking layer BML may be arranged on the substrate 100 tocorrespond to the first and second wiring areas WA1 and WA2. Thelight-blocking layer BML may prevent light incident on the display panel10 from being diffracted while passing through a narrow gap between thewires WL and unintentionally incident on the electronic component 20.

FIG. 13 is a schematic plan view of a touch sensing layer 40′ includedin the display device according to some example embodiments.

Referring to FIG. 13 , the touch sensing layer 40′ may include aplurality of sensing electrodes 400 and a plurality of signal lines 435.The sensing electrodes 400 may be arranged in the first display area DA1and may have unique coordinate information.

For example, the sensing electrodes 400 may be arranged in a matrixform. The sensing electrodes 400 may be arranged around the firstdisplay area DA1, and each of the sensing electrodes 400 may beconnected to each of the signal lines 435. A portion of the signal line435 may be arranged in the first display area DA1, and a portion of thesignal line 435 may be arranged in the surrounding area SA. The sensingelectrodes 400 may obtain coordinate information in a self-cap manner.Each of the sensing electrodes 400 may have a mesh pattern.

FIG. 14 is a cross-sectional view of the touch sensing layer 40′included in the display device according to some example embodiments,and is a cross-sectional view of the touch sensing layer 40′ taken alongthe lines X1 a-X1 a′ and X1 b-X1 b′.

Referring to FIG. 14 , the touch sensing layer 40′ may be arranged onthe display panel 10 and may include the first insulating layer 41, aconductive layer CL including the sensing electrode 400 arranged on thefirst insulating layer 41, and the second insulating layer 43 coveringthe conductive layer CL. The conductive layer CL may include the sensingelectrodes 400 and the signal lines 435. That is, the sensing electrodes400 and the signal lines 435 may be formed together in the same processand may include the same material.

The conductive layer CL, for example, the sensing electrodes 400 and thesignal lines 435 may include Mo, Mb, Ag, Ti, Cu, Al, and an alloythereof. The first and second insulating layers 41 and 43 may include aninorganic insulating material and/or an organic insulating material.According to some example embodiments, the first insulating layer 41 maybe omitted.

According to one or more embodiments as described above, a displaydevice and an electronic device including the same may be realized, thedisplay device having an extended display area to display an image evenin an area where an electronic component is arranged. In particular, adisplay device and an electronic device including the same may beprovided, the display device being capable of obtaining informationaccording to an external input even in an area where an electroniccomponent is arranged and preventing the sensing sensitivity from beingdeteriorated in a display area adjacent to the area where the electroniccomponent is arranged. However, the scope of the present disclosure isnot limited by this effect.

It should be understood that embodiments described herein should beconsidered in a descriptive sense only and not for purposes oflimitation. Descriptions of features or aspects within each embodimentshould typically be considered as available for other similar featuresor aspects in other embodiments. While one or more embodiments have beendescribed with reference to the figures, it will be understood by thoseof ordinary skill in the art that various changes in form and detailsmay be made therein without departing from the spirit and scope asdefined by the following claims and their equivalents.

What is claimed is:
 1. A display device comprising: a substrateincluding a first display area and a second display area; a first wireextending in a first direction on the second display area; a second wireextending in a second direction on the second display area; a pluralityof first pixels in the first display area; a plurality of second pixelsin the second display area, the plurality of second pixels forming pixelgroups that are spaced from each other with a transmission areatherebetween; and a touch sensing layer over the plurality of firstpixels and the plurality of second pixels, wherein the touch sensinglayer comprises: first conductive lines in the first display area;second conductive lines corresponding to the pixel groups in the seconddisplay area, wherein a width of the second conductive lines adjacent toa corresponding transmission area is different from a width of the firstconductive lines; and an extension portion extending from one of thesecond conductive lines and located between the pixel groups in a planview.
 2. The display device of claim 1, wherein a width of the extensionportion is different from a width of the first conductive lines.
 3. Thedisplay device of claim 1, wherein a width of the extension portion isdifferent from a width of the second conductive lines.
 4. The displaydevice of claim 1, wherein a width of the extension portion is differentfrom a width of the first wire.
 5. The display device of claim 1,wherein a width of the extension portion is different from a width ofthe second wire.
 6. The display device of claim 1, wherein the touchsensing layer further comprises a third conductive line electricallyconnecting the second conductive lines.
 7. The display device of claim6, wherein a width of the third conductive line is different from awidth of the first wire.
 8. The display device of claim 6, wherein awidth of the third conductive line is different from a width of thesecond wire.
 9. The display device of claim 1, wherein the firstconductive lines have a mesh pattern including a plurality of firstopenings that respectively correspond to at least one of the firstpixels, and wherein the second conductive lines have a mesh patternincluding a plurality of second openings that respectively correspond toat least one of the second pixels.
 10. The display device of claim 1,wherein the first wire comprises a data line, and the second wirecomprises a scan line.
 11. The display device of claim 1, wherein thepixel groups formed by the plurality of second pixels comprise a firstgroup of second pixels and a second group of second pixels that arespaced from each other with the transmission area therebetween, whereinthe second conductive lines comprise: a first group of second conductivelines between at least two second pixels from among the first group ofsecond pixels; and a second group of second conductive lines between atleast two second pixels from among the second group of second pixels,and wherein the extension portion is located between the first group ofsecond conductive lines and the second group of second conductive linesto connect the first group of second conductive lines to the secondgroup of second conductive lines.
 12. The display device of claim 11,wherein the pixel groups formed by the plurality of second pixelsfurther comprise a third group of second pixels and a fourth group ofsecond pixels that are arranged in the first direction, wherein thesecond conductive lines comprise: a third group of second conductivelines between at least two second pixels among the third group of secondpixels; and a fourth group of second conductive lines between at leasttwo second pixels among the fourth group of second pixels, and whereinthe first group of second pixels and the second group of second pixelsare arranged in the second direction.
 13. The display device of claim12, wherein the touch sensing layer further comprises a third conductiveline electrically connecting the second conductive lines, and whereinthe third conductive line electrically connects the third group ofsecond conductive lines to the fourth group of second conductive lines.14. The display device of claim 13, further comprising an insulatinglayer between the third group of second conductive lines and the thirdconductive line and between the fourth group of second conductive linesand the third conductive line, wherein the third conductive line isrespectively connected to the third group of second conductive lines andthe fourth group of second conductive lines through contact holes of theinsulating layer.
 15. The display device of claim 1, wherein the touchsensing layer further comprises a third conductive line electricallyconnecting the second conductive lines, and wherein the third conductiveline at least partially overlaps the first wire.
 16. The display deviceof claim 1, wherein the extension portion at least partially overlapsthe second wire.
 17. The display device of claim 1, wherein a number ofthe second pixels per a unit area is less than a number of the firstpixels per the unit area.
 18. The display device of claim 1, wherein thesecond conductive lines comprise a metal layer.
 19. The display deviceof claim 1, wherein the first conductive lines and the second conductivelines comprise a same material.